aubf leeccc Flashcards
(102 cards)
Major body fluid
CSF
Clear and colorless liquid composed primarily of water
CSF
FUNCTIONS OF CSF
- Mechanical protection
- Homeostatic function
- Circulation
Vol of CSF
- 20 mL/hour
- Adult: 90 – 150 mL
- Neonate: 10 – 60 mL
Protective tissue coverings that encircle the spinal cord and brain.
Meninges
Dense irregular connective tissue(Hard Mother)
Dura mater
Thin, loosely arranged collagen and elastic fibers (spiderweb-like)
Arachnoid mater
Thin, transparent connective tissue layer (gentle mother)
Pia mater
FORMATION of CSF
- 3rd choroid plexus
- Selected substances from the blood plasma
- Filtered from capillaries
- Secreted by ependymal cells
Tube 1
Chemistry and serology
Tube 2
Microbiology
Tube 3
Hematology
Tube 4
additional tests
LUMBAR PUNCTURE
- Spinal tap
- Performed by a physician
- Between L3 and L4/L4 and L5
- Flexion of vertebral column
is used to describe CSF supernatant that is pink, orange, or yellow
Xanthochromic
Heaviest concentration of blood in
tube 1
Clot formation
Introduction of plasma fibrinogen into the specimen
In Xanthochromic, Result of blood that has been present longer than that introduced by the
Traumatic Tap
Most frequently performed chemical test
protein determination
Decreased CSF Protein
*CSF leakage/trauma
*Recent puncture
*Rapid CSF production
*Water intoxication
Identify the causative agent of meningitis.
Microbiology test
Bacterial meningitis hrs
24
Tubercular meningitis
6 weeks
tests for microbiology
*Gram stain
*Acid-fast stain
*India ink preparation
*Latex agglutination